Electric switch



R. A. SCHOENBERG.

ELECTRIC SWITCH. APPLICATION FILED APII.22. 1916.

NITED STATES RALPH A. SCHOENBERG, (NOW BY JUDICIAL CHANGE OF NAME) RALPH A, BEL1VIONT,) OF NEW YORK, N. Y., ASSIGNOR T BEAVER MACHINE AND TOOL CO., INC., 0F NEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY.

ELECTRIC SWITCH.

Specification of Letters Patent.

Patented Mar. 14, 1922.

Application filed April 22, 1916. Serial No. 92,981.

(now by judicial change of name RALPH A.

BELMONT.) of New York city, in the county and State of New York, have invented a new and useful Electric Switch, of-which the following is a specification.

My invention \relates to electric switches and is particularly useful with switches in whichv there is a bare conductor exposed outside of the body member and it is especially useful with canopy switches although its use is not by any means limited to the fields above described.

One object of my invention is to provide efficient insulation for such a bared conductor or conductors. t

Another object is to shorten the length of vthe device as a whole, space being of ver'v great practical importance particularly with ,canopy switches.

Other objects will be pointed out below.

One feature of my invention consists in means for holding -said insulation in place which means is at the sideof the device.

Another feature is a spring to do said holding. Other features will be pointed out below.

In the drawings:

Figui'es l and 2 are longitudinal sectional views of my improved switch, Figure l being a section on line 1-1 of Figure 5 and Figure 2 being a sectionl on line 2--2 of Figure 5;

Figure 3 is an elevation of the inner end of the porcelain body hereinafter described;

Figure 4 is a side elevation of the body shown in Figure 3; and

Figure 5 is an elevation of the outer end of the body shown in Figure 4t.

The body member A is made of porcelain oi' other insulating material and has a chamber A with two straight walls a a2 and a smaller square chamber A2. Member A is also provided with recesses a3 .as leading from straight walls a a2 to receive tongues a4l a4 on member A3 which is a cover for chamber A, said tongue and recesses preventing relative rotation of members A and A3, which are held against relative longitudinal movement by clamping member A4.

I have shown a lrotary operating member having a ,cylindrical portion B and having a flange b and being threaded at b the threaded portion being of less diameter than the bore of member A3. I rovide washei' b2 to engage the end of portion B, the washer b2 being clamped against the end of member A3 by means of nut b3 so that longitudinal movement of the rotary operating member 'is lprevented. It is desirable in some cases to ave aremovable linger piece and so I provide member B interiorly threaded to engage portion b. y i

The operating member is provided with an operating portion D having a plurality of operative diversely-inclined facial portions as is Well known in the art and fully de-l scribed in U. S. Letters Patent No.. 811,410 dated January 30, .1906. A`tension member E is provided to engage portion D. Fibre or other suitable material F insulatesmember Efrom contact member G which carries spring fingers gi g. Members E, F and G will have reciprocating motion without rotation as described in said patent, rotation ber Line wire H has a bared end which extends through recess h., passage b, chamber A2, passage h2 and is hooked at h3 in recess h4 with its extreme end exposed outside of member A. Similarlyrecess h5 passages k and if and recess ha are provided for the bared end (not shown) of line wire H.

In the drawings lillustrate one form of insulation for the exposed ends of the wires and it consists in a fibre tube K notched at le and perforated at k2 k3. This insulation is held in place by a metal strip L which extends through notches 7c lc and has spring latch portions Z Z which are hooked at Z Z toextend through perforations k2 los and engage grooves 7:4 and h5 in member A. M

re resents a canopy to which my device is helfd by means of nut N which engages threading on member A3.

A great advantage of my switch is that its length is shortened materially While its eiiiciency is preserved.

What I claim is:

A device of the character described comprising a body-having a bare conductor on its exterior; a cover of insulating material for'said conductor; and means on the cover engaging said body intermediate of the ends of the device for holding the cover in position.

2. A device of the character described comprising a body formed at each side with being prevented by thewalls `of small charna groove and carrying aI bare conductor on its exterior; a cover for said conductor formed at each side with a hole; and a pair of spring latches each extending through one of the holes of the cover and engaging one of the grooves on the body to hold the cover in position.

3. A device of the character described.

comprising a body formed at each side with a groove and carrying a bare conductor on its exterior; a cover for said conductor formed at each side with a'hole; a pair of spring latches each extending through one of the holes of the cover and engaging one of the grooves on the body to hold the cover in position; and a bar integral with said lloatzhes and extending across one end of said Ly A 4device of the character described comprising a body formed at each side With a groove and carrying a bare conductor on its" exterior; a cover for said conductor formed at each side with a hole and at each side of one end formed with notches; and a pair of spring latches each extending through one of the holesv ofthe cover and engaging one of the grooves on the body to hold the cover in position and a bar integral with said latches and engaging the notches to hold thebar in position.

5. A device of the character described comprising a body; a cover for said body; a member engaging said cover and crimped to said body to hold said body and cover together; a bare conductor on the exterior of said body; a cover for said conductor; and

means at the side of the structure for holding said cover of the conductor in position.

6. A device of the character described comprising a body of insulating material; switch mechanism Within said body and including an actuator projecting from one end of said body; a conductor connected with said switch mechanism and extending through said body and having its end extending to the exterior .of said body; an insulating cover for said end of the conductor and being separate from said body and located at thatend of the body Whichis opposite said actuator; and means engaging the side of the body for holding the cover in position. f

7. A device of the character describe comprising a body of insulating material and provided With indentations; -sWitch mechanism Within said body.; Wires connected with Said switch mechanism and ex` tending to the exterior of said body; an insulating cover for the ends of the Wires formed at each Side With a hole; andapair of spring latches each extending through one of the indentations'in the body to hold the cover in` position.

8. A ,device of the character described comprising a body of insulating materiall f having an external shoulder; a switch Within said body a cover for said body; a memberv vengaging said cover and crimped around said shoulder to hold the cover and body together; and means toV fasten the body and cover`x to a support.

RALPH A. SCHOENBERG- 

